355 ci cammed??? Stock chip need help!
Thread Starter
Racer
Joined: Oct 2006
Posts: 305
Likes: 0
From: Hilmar Ca
355 ci cammed??? Stock chip need help!
Hey well I have a 86 with aluminum heads and the engine is at the machine shop. It is going to get 30 over stock so it should be a 355 and the cam is going to be a little bigger than stock it will also have a compression ratio of 9.7:1 I would like to know how well the car will run with the stock chip? Is it nessesary? every thing else is stock! exept for cut lid and duel exausht with X pipe. I might add a fuel pressure regulater befor I put all back together.
Team Owner
Joined: Jan 2003
Posts: 20,324
Likes: 250
From: Summerland B.C. Canada
The stock chip will probably due fine, just not optimal. I still have the stock chip in my built up 355 and it runs strong. In spring I will be buring a new chip to get the most out of mine. 
Burning Brakes
Joined: Aug 2005
Posts: 1,172
Likes: 9
From: '88 TPI L98/HotCam Powell, Ohio
Agent, when you say built up is that w/ heads,intake...etc??
Not trying to hijack but I would love to keep the stock chip w/ my soon to be ported TPIS heads and intake. (355 w/ stock cam and 1.7 rr's)
Not trying to hijack but I would love to keep the stock chip w/ my soon to be ported TPIS heads and intake. (355 w/ stock cam and 1.7 rr's)
Thread Starter
Racer
Joined: Oct 2006
Posts: 305
Likes: 0
From: Hilmar Ca
specs
Ok so I talked with the builder and he said that the cam specs are .228.50 for the intake .217.50 exhaust and the duration is 113. Its is a comp cam and the pistons are forged probe pistons
Team Owner
Joined: Jan 2003
Posts: 20,324
Likes: 250
From: Summerland B.C. Canada
Block
bored .030 decked .020
crank turned 10/10
Clevite 77 bearings
Speed pro hyper flat tops, -6cc valve reliefs, polished tops
polished stock rods with ARP bolts
cloyes true roller timing set
Comp cam CS XE262H-14 Lift In .464 Ex .470 Duration @50 In .218 Ex .224
Comp cams lifters
balanced on a Hines
felpro 1010 .039 head gaskets
10.5 static 8.5 dynamic compression
Heads #128
Port matched,valve pockets,ports and chambers ported and/or polished
Crane 1.6 roller rockers
ARP rocker studs
Crane stepped guide plates
Crane push rods
LT4 springs
Guides machined and bronze liners installed
Deck resurfaced
Stainless undercut valves
3 angle valve job
Felpro viton seals on all valves
Intake
Super ram, port matched top to bottom
52mm TB with air foil
Bosch 22lb injectors
Holley AFPR
No EGR
No AIR pump
Exhaust
Headman Elite long tubes with heated O2 in one and wideband in other
NO cats
Magnaflow catback
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Burning Brakes
Joined: Aug 2005
Posts: 1,172
Likes: 9
From: '88 TPI L98/HotCam Powell, Ohio
Looks like a nice setup. Encouraging that it runs good w/out a new chip/tune. Thanks. Oh yeah, nice ride. I just looked at your pics.
Now back to the originally scheduled program.....
Now back to the originally scheduled program.....
Thread Starter
Racer
Joined: Oct 2006
Posts: 305
Likes: 0
From: Hilmar Ca
Yeah that sounds about right! I dont know much about cams and numbers???
Well hopefully it runs good without a tune/chip and hopefully its faster than what it was
it was stock with 208,XXX
Well hopefully it runs good without a tune/chip and hopefully its faster than what it was it was stock with 208,XXX
Team Owner
Joined: Sep 2001
Posts: 62,160
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
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Instructor
Joined: Dec 2004
Posts: 187
Likes: 70
I'm running a similar combination to Agent's with a 218/228 - 110 spread Comp Cam with the stock chip and 24# SVO injectors with other than worthless results. You will be "OK" with 22# injectors and the 113 lobe spread with bumped timing and added fuel pressure until you learn enough to burn your own chip.